Watch This Mashup of the Most Amazing Musical and Dancing Numbers in TV History (VIDEO)

Bop your head along to this awesome mashup video of TV's most iconic musical and dancing numbers. You'll see a major spotlight on one of our favorite TV shows ever, Glee. (They even featured Glee star Kevin McHale's (Artie) cover of Men Without Hats hit "The Safety Dance"!) See if you can catch clips from other classics like The Office, The Cosby Show, Will & Grace, Flight of the Conchords, How I Met Your Mother, The Simpsons, Friends, and South Park.